Information processing device executing communication processing with external device, and method and system for the same

A method for controlling an information processing device,

• the information processing device comprising:
• a communication interface configured to communicate with a first server, a second server storing an application program, and an external device;
• a processor coupled to the communication interface;
• and
• a storage in which an operating system has been installed in advance,
• wherein the operating system stored in the storage, when executed by the processor, causes the information processing device to perform:
• obtaining, from a target object, first access information and first information, the first access information indicating a location of the first server;
• sending the obtained first information to the first server via the communication interface, using the first access information;
• receiving, from the first server via the communication interface, identification information and second access information in response to sending the first information to the first server, the identification information being unique to the first information, the second access information indicating a location of the second server;
• storing the received identification information in the storage;
• sending an access request information to the second server via the communication interface, using the second access information;
• downloading the application program from the second server via the communication interface after sending the access request information;
• and
• installing the application program that has been downloaded,
• wherein the installed application program, when executed by the processor, causes the information processing device to perform:
• accepting an input of an instruction for activating the application program that has been installed;
• sending the identification information that has been stored in the storage to the first server via the communication interface, using the first access information;
• receiving, from the first server via the communication interface, the first information unique to the identification information in response to sending the identification information to the first server;
• establishing a connection with the external device, by using the received first information, by the application program;
• and
• executing a communication processing by using the established connection.

A communication system comprising an image processing device, a first server, a second server storing an application program, and an external device,

• the information processing device is configured to perform:
• obtaining, from a target object, first access information and first information, the first access information indicating a location of the first server;
• and
• sending the obtained first information to the first server via a first communication interface of the information processing device, using the first access information,
• the first server is configured to perform:
• generating identification information unique to the first information in response to receiving the first information from the information processing device;
• storing, in a first storage of the first server, the generated identification information and the received first information in association with each other;
• and
• sending the generated identification information and second access information indicating a location of the second server to the information processing device via a second communication interface of the first server,
• the information processing device is configured to further perform:
• storing the identification information that has been received from the first server in a second storage of the information processing device;
• and
• accessing the second server via the first communication interface, using the second access information that has been received from the first server, the second server is configured to perform sending the application program to the information processing device via a third communication interface of the second server in a case where the second server is accessed by the information processing device,
• the information processing device is configured to further perform:
• installing the application program that has been received from the second server in the second storage;
• accepting an input of an instruction for activating the installed application program;
• and
• sending the identification information stored in the second storage to the first server via the first communication interface, using the first access information,
• the first server is configured to further perform:
• reading the first information unique to the received identification information from the first storage in response to receiving the identification information from the information processing device;
• and
• sending the read first information to the information processing device via the second communication interface,
• the information processing device is configured to further perform:
• establishing a connection with the external device using the first information that has been received from the first server;
• and
• executing communication processing by using the established connection.